The CSI team must locate a woman who has been kidnapped and dialed a wrong number on her cell phone. To try and locate her the team must first figure out who the kidnapped woman was trying to contact in the first place. Meanwhile, Marisol has a difficult decision to make and Horatio helps her. Natalia is surprised when Ryan asks for Delko's permission to take her out on a date.

During an A-list house party, an heiress is found electrocuted in her own bathtub. The list of suspects includes her musician boyfriend, her assistant, and her main modelling rival. Delko learns that Horatio and Marisol are soon to be married and has mixed feelings about their wedding.